erigon: deprecate

Closes #164590

Signed-off-by: Michael Cho <michael@michaelcho.dev>

.github/autobump.txt

@@ -553,7 +553,6 @@ enzyme
 epr
 erdtree
 erg
-erigon
 erlang
 erlang@24
 erlang@25

Formula/e/erigon.rb

@@ -6,11 +6,6 @@ class Erigon < Formula
   license all_of: ["GPL-3.0-or-later", "LGPL-3.0-or-later"]
   head "https://github.com/ledgerwatch/erigon.git", branch: "devel"
 
-  livecheck do
-    url :stable
-    strategy :github_latest
-  end
-
   bottle do
     sha256 cellar: :any_skip_relocation, arm64_sonoma:   "ae35586de98a7067a18a36323c65a8573fd2a5cf3c4467efa1daa7f625b72edc"
     sha256 cellar: :any_skip_relocation, arm64_ventura:  "1b3595711fe008717c82ccfa82836e9753f2319b7f66c2848ee4f891879737b5"
@@ -21,6 +16,11 @@ class Erigon < Formula
     sha256 cellar: :any_skip_relocation, x86_64_linux:   "d66f64987e1828b5098e40d6ec7e4fe4ece0240059d2151abca6f9959f6c88aa"
   end
 
+  # Upstream includes pre-built libsilkworm_capi inside silkworm-go and recommends copying to installation:
+  # https://github.com/ledgerwatch/erigon?tab=readme-ov-file#how-to-run-erigon-as-a-separate-user-eg-as-a-systemd-daemon
+  # Trying to build library from source only works with `conan` which would use their pre-built libraries.
+  deprecate! date: "2024-02-29", because: "needs a pre-built copy of libsilkworm_capi"
+
   depends_on "gcc" => :build
   depends_on "go" => :build